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comparison OrthancStone/Sources/Scene2DViewport/OneGesturePointerTracker.h @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Framework/Scene2DViewport/OneGesturePointerTracker.h@ab81ee8fce1f
children e731e62692a9
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1511:9dfeee74c1e6 1512:244ad1e4e76a
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21 #pragma once
22
23 #include "IFlexiblePointerTracker.h"
24
25 #include "../Viewport/IViewport.h"
26
27 #include <boost/shared_ptr.hpp>
28 #include <boost/weak_ptr.hpp>
29
30 namespace OrthancStone
31 {
32 /**
33 This base is class allows to write simple trackers that deal with single
34 drag gestures with only one touch. It is *not* suitable for multi-touch and
35 multi-state trackers where various mouse operations need to be handled.
36
37 In order to write such a tracker:
38 - subclass this class
39 - you may store the initial click/touch position in the constructor
40 - implement PointerMove to react to pointer/touch events
41 - implement Cancel to restore the state at initial tracker creation time
42
43 */
44 class OneGesturePointerTracker : public IFlexiblePointerTracker
45 {
46 public:
47 OneGesturePointerTracker(boost::shared_ptr<IViewport> viewport);
48 virtual void PointerUp(const PointerEvent& event) ORTHANC_OVERRIDE;
49 virtual void PointerDown(const PointerEvent& event) ORTHANC_OVERRIDE;
50 virtual bool IsAlive() const ORTHANC_OVERRIDE;
51
52 protected:
53 boost::shared_ptr<IViewport> viewport_;
54
55 private:
56 bool alive_;
57 int currentTouchCount_;
58 };
59 }
60